Spark arrestor



FIG. 1 is a front perspective view of a first embodiment of a spark arrestor showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front perspective view of a second embodiment of a spark arrestor;

FIG. 6 is a rear perspective view thereof;

FIG. 7 is a side view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a front perspective view of a third embodiment of a spark arrestor;

FIG. 10 is a rear perspective view thereof;

FIG. 11 is side view thereof;

FIG. 12 is a top plan view thereof;

FIG. 13 is a front perspective view of a fourth embodiment of a spark arrestor;

FIG. 14 is a rear perspective view thereof;

FIG. 15 is side view thereof;

FIG. 16 is a top plan view of the first embodiment of the design of a spark arrestor;

FIG. 17 is a front perspective view of a fifth embodiment of a spark arrestor;

FIG. 18 is a rear perspective view thereof;

FIG. 19 is a side view thereof;

FIG. 20 is a top plan view thereof;

FIG. 21 is a front perspective view of a sixth embodiment of the design of a spark arrestor;

FIG. 22 is a rear perspective view thereof;

FIG. 23 is a side view thereof; and,

FIG. 24 is a top plan view thereof. 

The ornamental design for a spark arrestor, as shown and described. 